SHANGHAI -- Japanese audio system maker Alpine Electronics Inc. wants to quintuple its China sales by 2015, says a senior executive.The company is expanding production capacity at plants in Liaoning and Jiangsu provinces, and is increasing sales to domestic Chinese automakers, said Naoki Mizuno, president of Alpine Electronics China Co.This year, sales are 20 percent higher than in 2009, Mizuno said. He declined to disclose further financial details.